Possessive form of names ending in "S"Edit
Okay I've been making this mistake for far too long so I decided to try to fact-check this:
We've been writing "Stannis'" (Stannis, an apostrophe, and NO following possessive "S") for things that belong to Stannis: "Stannis' army", "Stannis' daughter".
I think we were overcompensating. I checked this style guide http://grammar.ccc.commnet.edu/grammar/possessives.htm -- though admittedly there is more than one official style guide floating around out there.
At any rate, it appears that we've been overcompensating due to mental association with rules about possessive S and PLURAL nouns:
"The Lannisters' money" is correct, but "the Lannisters's money" is incorrect.
That only applies to plural nouns, not singular nouns like a man named "Stannis" that happen to end in "S". In which case, "Stannis's" would actually be correct.--The Dragon Demands (talk) 18:06, September 19, 2013 (UTC)
I checked: the A Song of Ice and Fire books themselves use "Stannis's" with a following possessive "S". This will now be the official version on the wiki, because it is the version used by George R.R. Martin. So sayeth the shepherd, so sayeth the flock. (Frankly I prefer it this way - the dangling lone apostrophe makes wiki-coding problems, ends up italicizing stuff that shouldn't be).--The Dragon Demands (talk) 18:11, September 19, 2013 (UTC)